Number and Operations in Base Ten - Understand the place value system.

Standards

CCSS.Math.Content.5.NBT.A.3 Read, write, and compare decimals to thousandths.

• CCSS.Math.Content.5.NBT.A.3a
  • Read and write decimals to thousandths using
    • base-ten numerals, e.g. 347.392
    • number names, e.g. three hundred forty seven and three hundred ninety two thousandths
    • and expanded form, e.g., 347.392 = 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000).

  • Online Support Sites:

    • http://www.internet4classrooms.com/common_core/read_write_compare_decimals_thousandths_number_operations_in_base_ten_fifth_5th_grade_math_mathematics.htm

  • Online Practice:

    • IXL - Decimals: What decimal number is illustrated? (Fifth grade - C.1)
    • IXL - Decimals: Understanding decimals expressed in words (Fifth grade - C.2)
    • IXL - Decimals: Place values in decimal numbers (Fifth grade - C.3)

  • Scaffolding for Decimals to the Hundredths

    • AllAboutDecimals
    • Decimals and percents - Johnnie's Math Page
    • Decimals Lessons and Games

• CCSS.Math.Content.5.NBT.A.3bCompare two decimals to thousandths based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.

  • Online Support Sites:

    • http://www.internet4classrooms.com/common_core/read_write_compare_decimals_thousandths_number_operations_in_base_ten_fifth_5th_grade_math_mathematics.htm

  • Online Practice:

    • IXL - Decimals: Equivalent decimals (Fifth grade - C.4)
    • IXL - Decimals: Decimal number lines (Fifth grade - C.6)
    • IXL - Decimals: Compare decimal numbers (Fifth grade - C.7)
    • IXL - Decimals: Put decimal numbers in order (Fifth grade - C.8)
    • IXL - Multiply decimals: Inequalities with decimal multiplication (Fifth grade - G.10)